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澳海域搜救区域浪高达数米 分析称搜救面临困难

2014-03-21 10:10:59   中国新闻网

原标题:澳海域搜救区域浪高达数米 分析称搜救面临困难

中新网3月21日电 据外媒报道,澳大利亚20日宣布卫星图像发现疑似与失联马航航班有关物体,各方搜救队伍目前正在南印度洋加紧搜索。分析指出,如果卫星发现的这些物体被证实属于失踪航班,当地浪高海深的搜索条件将为搜救带来极大困难,这一区域可能是搜救“最不理想的地点”。

当地时间20日,由澳大利亚牵头的搜索行动安排4架飞机前往距西澳大利亚州首府珀斯西南超过2000公里的区域寻找卫星图像上发现的两个物体,其中一个长24米,比集装箱大。

报道指出,这一区域常年受大风、强洋流和多变天气影响,被澳大利亚国防部长称为世界上最偏远的地方之一。澳大利亚和新西兰派出的3架PC-3“猎户座”飞机以及一架美国P-8“海神”飞机被厚厚的云层所阻碍。

航空专家称,如果搜索队伍发现照片上的物体且证实其为失踪飞机的残骸,有关部门将面临一个更艰巨的任务:找到剩下的残骸并揭开已经成为现代航空史上最大谜团之一的客机失踪真相。

国际民航局(International Bureau of Aviation)商务总监欧文·吉奇称,所需的复原工作量很大,因为随着时间的推移,很多残骸可能位于海面下两英里深处,并散布在一大片区域内。

吉奇说,如果上述物体被证明来自失踪飞机,那么目前存在的很多可能性会被排除,比如飞机已经降落在某处。但需要时间将发现的残骸拼凑在一起。

卫星图像是4天前拍摄的。澳大利亚一名空军官员说,每一帧图像都必须从卫星提取并逐帧检测。政府在确认图像可信之后立马将信息移交给了搜救部门。

20日晚些时候,对疑似地区的空中搜索一度暂停数小时,因所有飞机均达到耐力极限并返回澳大利亚本土补充燃料。搜索地区距离澳大利亚本土有4小时航程。澳大利亚政府还请求附近的一艘挪威商船协助搜索。

这些飞机飞行高度约在1000至2000英尺(约300米到600米),利用从望远镜到机载红外照相机的种种设备进行搜索。红外照相机功能强大,能够定位至多22英里(约35公里)之外的物体。飞机还配备了数字雷达和可以定位大型金属物体的磁异常探测器。

西澳大学(University of Western Australia)海洋研究所(Oceans Institute)教授Charitha Pattiaratchi介绍,搜索海域的平均深度为2.5英里(约4千米)至3英里。他说,该海域平均浪高约4米,但最高可以达到10米。他表示,世界上几乎没有可以在飞机可能下沉深度进行遥控作业的水下搜索设备;如果这的确是飞机残骸,那么这一区域可能是“最不理想的地点”。

澳大利亚国防部长大卫表示,搜索区域位于世界上最偏远的地区之一,也可能就是最偏远的地区。他说,他们正全力以赴,但外界不要报太大希望。

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